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Finding the Fourth Proportional to 481,785.20, 722,386.20 and 215,496.08

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Solution

The fourth proportional to 481,785.20, 722,386.20 and 215,496.08 is: 323,113.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,785.20 : 722,386.20 = 215,496.08 : x
  2. Step 2: Convert to fraction form
    481,785.20/722,386.20 = 215,496.08/x
  3. Step 3: Cross multiply
    481,785.20x = 722,386.20 × 215,496.08
  4. Step 4: Simplify right side
    481,785.20x = 155,671,394,346.10
  5. Step 5: Solve for x
    x = 155,671,394,346.10/481,785.20
  6. Step 6: Final answer
    x = 323,113.69

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